You can put this solution on YOUR website!
I have three things I am tired of:
1) People who don't show that they have tried. Where's your work showing you tried? Are you being lazy and just want to copy some answers?
2) You didn't acknowledge any appreciation. Why would anyone do anything for you if you would just write the problem without saying "please" or "thank you." Do you know how inconsiderate you are? And we don't get payed so being nice helps.
3) You put more than 4 problems on this problem even though this is multi-step.
Read the rules and everybody becomes happy.
Fix these and people will be more willing to help you, thank you very much.
E)(You spelled does wrong) This shows that buying in bulk is cheaper and that smaller quantities cost more per unit than bigger quantities.